Note sure if this has been available here, but just wanted to add if not....have not found it on searches yet. The one confusing thing for me to date, is that I cant find how there are layers on the firewall to funnel water from the cowl areas up top, down even to the center flap hole, nor all the way down to the bottom of the fender region near the rockers. There must be either layers or a real funnel on the firewall that I have not found, either inside or out. Obviously more work to be done, and of course my car is not apart as in some of these photos on this page. I will soon remove the cowl grill and get out a vac extension to start, then add some probing and air pressure to see if things can be cleaned. Maybe even an old dog can learn.
1962 to 1965 Mopar Rust Issues
1962 to 1965 Mopar Rust Issues